The PHB has it all wrong.... The true secret to being a "good" manager is actually TWO parts - 1. Hiring smart people for each position in your department. 2. Knowing when(and how) to use THEIR suggestions as your own without getting caught.
I used to work under one such "good" manager once, and it was INCREDIBLY annoying and frustrating to see your own thoughts getting the slime-ball the congratulations from upper management.
..... Strangely enough, that department also had the highest turnover rate for new, incoming employees from outside the building - the ones working there already knew about him and either avoided his department or had managed to get transferred to a more "reasonable" PHB.